[Arthur took a long swig from his glass, before he sat it aside, looking as enthusiastic as ever. At the question, he seemed to pause, furrowing his brows with thought, before gesturing with his hands to about the size of a gun.]

Think somethin' about ye big, got a handle and a trigger, and a lil' metal piece packed with gunpowder. Gunpowder gets struck by a switch in it, in a way, and shoots out the metal piece faster than you can imagine. You ever seen the lid of somethin' explosive get shot off it? Imagine that, but smaller, and you're doin' it on purpose towards somebody you want to put holes into. Bet I could draw one for ya if that don't make sense.